feat(waybar): enable battery

hosts/tilo/services/nextcloud-cron.nix

@@ -1,7 +1,7 @@
 {pkgs, ...}: {
   systemd = {
     timers."nextcloud-cron" = {
-      wantedBy = [""];
+      wantedBy = ["timers.target"];
       timerConfig = {
         OnBootSec = "5m";
         OnUnitActiveSec = "5m";
@@ -11,6 +11,19 @@
     services."nextcloud-cron" = {
       script = ''
         set -eu
+
+        CONTAINER_NAME="nextcloud-nextcloud-1"
+
+        is_container_running() {
+          ${pkgs.docker}/bin/docker inspect -f '{{.State.Running}}' "$CONTAINER_NAME" 2>/dev/null | grep -q "true"
+        }
+
+        while ! is_container_running; do
+            echo "Waiting for $CONTAINER_NAME to start..."
+            sleep 10
+        done
+
+        echo "$CONTAINER_NAME is running. Executing CRON job..."
         ${pkgs.docker}/bin/docker exec -u www-data -it nextcloud-nextcloud-1 php /var/www/html/cron.php
       '';
       serviceConfig = {